Drew:
After rereading your page on American tube sources, I've answered my question here:
http://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=203913#Post203913 Does it seem that the mix of "LLH" and any other Belgian tube maker's marks on tubes with the Hunter Arms Company trademark are post WWI?? Also are there any pre-1913 L.C. Smith(or post WWI) examples, or others, that have tubes with the Crown, Nitro, Royal, London, Special, etc. steel stamp with a Belgian maker's mark? If I remember correctly, the Belgian tube trade, at least the pattern welded portion, began to fall apart post WWI and I would guess that after the WWI disruption of sourcing channels to the Continental gunmakers, Hunter Arms Company, etc., located a large supply of tubes from Belgium. So here they are with a conundrum of a cheap lot of tubes while they have been offering home-grown steel tubes with their respective stamps. So in order to sort of save face they stamped an American recipe steel type onto a Belgian made tube of similar composition. Just a wild guess for now.
Kind Regards,
Raimey
rse
